Data not loading in gridview. Index was out of range. Must be non-negative and less than the size of the collection.

<asp:GridView ID="GridView1" runat="server" OnRowDataBound="GridView1_RowDataBound" AutoGenerateColumns="false" ShowHeaderWhenEmpty="true" EmptyDataText="No records Found">
    
    </asp:GridView>

public partial class Pending : System.Web.UI.Page
   {
       SqlConnection con = new SqlConnection("Data Source=jayraj-pc\\sqlexpress;Initial Catalog=Internship;Integrated Security=True;Pooling=False");

       protected void Page_Load(object sender, EventArgs e)
       {
           BindGridviewData();

       }

       protected void BindGridviewData()
   {
       con.Open();
           string p = "Pending";

           SqlCommand cmd = new SqlCommand("select FirstName,LastName,LocationPreference,College,Status,null as 'Action',null as 'Actions',UserID,InternshipID from UsersApplied where InternshipID='" + Request.QueryString["InternshipID"].ToString() + "' and  Status='" + p + "'", con);

           SqlDataAdapter da = new SqlDataAdapter(cmd);
           DataSet ds = new DataSet();
           da.Fill(ds);
           //DataTable dt = new DataTable();
           //da.Fill(dt);
          // if (dt.Rows.Count > 0)
           if (ds.Tables[0].Rows.Count == 0)
           {
               ds.Tables[0].Rows.Add(ds.Tables[0].NewRow());
               GridView1.DataSource = ds;
               GridView1.DataBind();
               int columncount = GridView1.Rows[0].Cells.Count;
               GridView1.Rows[0].Cells.Clear();
               GridView1.Rows[0].Cells.Add(new TableCell());
               GridView1.Rows[0].Cells[0].ColumnSpan = columncount;
               GridView1.Rows[0].Cells[0].Text = "No Records Found";



               //GridView1.DataSource = dt;
               //GridView1.DataBind();


               //Pending();




           }
           else
           {
               GridView1.DataSource = ds;
               GridView1.DataBind();
           }
           con.Close();
   }